Jacob wassekbkrokeb



J. WASSERBERGER.

` FUSE LINK. APKPLICATION FILED OCT. 5. 1918.

1,310,314. Patented July 15, 1919.

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JACOB WASSERBERGER, OF NEW YORK, N. Y.

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Specification of Letters Patent.

Application led Getober 5, 1918. Serial No. 257,058.I

To all whom t may concern:

Be it known that I, JACOB WAssnRBnRGEn, a citizen of the United States, and resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Fuse- Links, of which the following is a specication.

This invention relates to fuse links and its object is to provide a link of several parts bound together by a low melting alloy and adapted to sustain considerable longitudinal strain by the construction and arrangement of its parts which are released only when the alloy allows the parts to become separated, as will be more fully described in the following specilication, set forth in the claims and illustrated n the accompanying drawings, wherein:

Figure 1 is a perspective view of the improved fuse link.

Fig. 2 is a plan view of the same.

Fig. 3 is a plan View showing the parts separated.

Fig. 4 is a longitudinal sectional View.

Fig. 5 is a side View of the slide member.

Fig. 6 is a modified form of the same.

Fig. 7 is a cross sectional view of the link.

In fuse links where the parts are held together by the binding alloy only the continual strain is apt to separate the members unless an unusual amount of binding material is employed, in which case the cost of the article is increased.

The present invention is adapted to use a very small amount of the binding medium and it consists of the two enveloping members 10 and 11 each having inturned flanges 12, those of member 10 being of suicient depth to enable it to receive and practically entirely inclose member 11 and its flanges.

One end of these flanges is beveled as at 13 and those of each member overlap when the members are together and form a pocket 14 and the vertical end parts of the members are bent toward each other and it closely. The ends are also perforated so that the link of a chain may be therein secured.

A third member of the link consists of a sliding piece 15 having an enlarged perforated head 16 and at its other end are oppositely extending lugs. This part of the link is adapted to lit within the flanges 12 of the member 11, as best shown in Fig. 7

while the lugs 17 extend through the pockets `14 sothat when the fuse is assembled the lugs are resting on the beveled faces 13 and when the ends at 18 and the head 16 are connected with appropriate cords or chains, the stress is borne almost entirely by the faces 13.

The three parts of the link when assembled are secured together by the quick fusing alloy Vwhich is contained within the link and between the adjacent parts, as shown in Figs. 4 and 7 and serves to bind theparts together only but to stand little strain.

When metals are subjected to undue pressure or stress heat is developed and fuse links are apt to be torn apart with ease and it is for this reason that the work in this instance is put upon the parts 13 and 17.

Vthile the slide member 15 is preferably made with an enlarged head, the construction shown in Fig. 6 may be resorted to and consists of a continuous strip with the lugs 17 and a perforation 18 as at the other end of the link.

If the link is subjected to undue heat the binding alloy melts and the members 10 and 11 will open as shown in Fig. 3, largely as the result of the pressure of the lugs 17 on the inclined faces, and as a result, the lugs are free to pass outward, releasing the door or window or other object which the members may be connected with.

The parts, as is obvious, may be otherwise arranged or modied without departing from the essential features above described or from the scope of the appended claims.

What I claim as new is:

1. In a fuse link, the combination of a slide member adapted to carry one end of a chain, inclosing members also adapted to carry the end of a chain and having interfitting iianges at their upper and lower edges to envelop the slide member, means on the slide member to engage the flanges and carry the stress of the chains, and a low melting binding agent.

2. In a fuse link, the combination of a slide member having Vertical extensions at its rear end, enveloping members for the slide member, horizontal flanges cut away at their rear ends to form pockets for the extensions, and a low melting binding agent.

3. In a fuse link, the combination of a slide member, lugs on the rear end of the same, an enveloping member, a second enveloping member, anges fitting over the' Patented July 15, 1919.

upper and the lower edges of the slide memedges of the slide member and having cut ber and out away to receive the lugs, and a Vaway portions to formv a pocket to receive 10 low melting binding agent. the lugs, and a binding agent. y

4f. In a fuse link, the combination of a Signed at New York in the county of New 5 slide member having a perforated attach- York and State of New York, this 27 th day ing end and lugs at the other end, envelopof September, A. D. 1918. ing members with coperating perforated Y ends, inwardly extending Hanges to cover the JACOB WASSERBERGER.

Copies of this patent may be obtained for five cents each, byv addressing the Commissioner of Patents,

Washington, D. U. 

